Syllabus ,EM-III, EM-3, Question papers, Answers, important Question ELECTRICAL MACHINES-III, R13 Regulation, B.Tech , JNTUK,Syllabus, download,
Single Phase Motors Single phase induction motors – Constructional features and the problem of starting–Double revolving field theory–AC Series motor–Compensation.
Synchronous generator construction and operation Constructional features of non–salient and salient pole type – Armature windings –Distributed and concentrated windings – Distribution– Pitch and winding factors –E.M.F equation–Improvements of waveform and armature reaction– Numerical problems.
Voltage regulation of synchronous generator Voltage regulation by synchronous impedance method– MMFmethod and Potier triangle method–Phasor diagrams– Two reaction analysis of salient pole machines and phasor diagram– Numerical problems.
Parallel operation of synchronous generators Parallel operation with infinite bus and other alternators – Synchronizing power – Load sharing –Transfer of real and reactive power– Numerical problems
Synchronous motor – operation Synchronous Motor principle and theory of operation– Phasor diagram – Starting torque–Variation of current and power factor with excitation – Synchronous condenser – Mathematical analysis for power developed– Numerical problems.
Synchronous motor performance and starting Excitation and power circles – Hunting and its suppression – Methods of starting – Synchronous induction motor.